The dream was a Marvel movie where I switched between the perspectives of different characters.
A blackhole had flown past the solar system, messing up the orbits of plants. It wasn’t catastrophic for the solar system, but it drastically impacted the earth’s tides, tectonics, and other features for days before things returned to normal.
The main plot followed the heroes trying to save people and themselves from a massive collapsing bridge. At one point Hulk fell into the water and began to drown, as two tectonic plates came up and crushed him between them. Captain America, Hawkeye, and Antman each got stuck in the water too while attempting to save him. Ironman had to use a piece of honeycomb concrete from the collapsing bridge to save them all.
Antman refused to grab onto the concrete, saying that life was meaningless. Batman appeared and promised to give him his own over-budget LEGO movie if he would grab on and be saved. Antman agreed.